996.    ---------------.  [FISCHER, F., AND PETERS, K.]  [Catalytic Gas Reactions in Liquid Medium.]  Brennstoff-Chem., vol. 12, 1931, pp. 286-293; Ges. Abhandl. Kenntnis Kohle, vol. 11, 1934, pp. 441-454; Chem. Abs., vol. 26, 1932, p. 24.

     Results were similar when the catalyst was suspended in paraffin oil or methylnapthalene and when the catalyst was in contact with one of the liquid phases.  Studies were made of hydrogenation and polymerization of C2H2 with Ni catalyst, formation of cuprene with Cu catalyst, hydrogenation of C2H4, formation of Ni(CO)4, and formation of hydrocarbons from CO in a paraffin-oil medium with catalyst of Ni-Al-Th-kieselguhr (mol. ratio 1:1:0.4).  The results are shown as follows:

  

Temperature, ºC.

CO,

conv.

percent

  

Products obtained, percent

  

 

  

CO2 

  

  

CH4

  

C2H6

Higher

hydro-

carbons

175................................

7

2

--------

36

62

210................................

26

11

--------

26

43

250................................

72

20

32

18

30

270................................

75

30

44

10

16

  Contact of the gas with the oil (about 20 sec.) was not sufficient for a quantitative conversion of the CO.  The higher hydrocarbons contained relatively little unsaturated products and consisted chiefly of propane and butane when higher temperature was used, while at lower temperature the proportion of liquid hydrocarbons increased.  Use of the catalyst in liquid media is advantageous for both laboratory and technical gas reactions, because it makes possible close control of temperature and eliminates overheating.